ES2898654T3 - Feed system and method for feeding a stack of flat elements to a processing device - Google Patents

Abstract

Feeding system for feeding a stack (101) of stackable flat elements, in particular cardboard elements, to a processing device, the feeding system comprising a delivery chute (103) comprising a receiving surface (104) on which an edge portion (111) and a central portion (116) of the stack (101) can be arranged, a transport device (125) comprising a support platform on which at least one edge portion can be supported (115) of the stack (101), wherein the support platform is disposed adjacent to the receiving surface (104) so that the additional edge portion (115) of the stack (101) can be received, an element fixing element (117), wherein the fixing element (117) is arranged to adjust a size of a gap (705) between the fixing element (117) itself and the support platform, so that the additional edge portion (115) of the battery (101) can be clamped between the fixing element (117) and the support platform, characterized in that the transport device (125) is configured to be movable along a first direction (109) between a receiving position, in which the stack ( 101) can be received by the delivery chute (103), and a handover position in the processing device so that the stack (101) is movable from the receiving position to the handover position, where the first address ( 109) is a direction that is parallel to one edge of the delivery chute (103) and parallel to the additional edge portion (115) of the stack (101) that is located on the delivery chute (103).

Description

DESCRIPTION

Feed system and method for feeding a stack of flat elements to a processing device

field of invention

The present invention relates to a feeding system and a method for feeding a stack of stackable flat elements, in particular cardboard elements, to a processing device.

Furthermore, a management system comprising the part distribution system, a transfer system for transferring the stack to a processing device, and a feeding system for feeding the stack to the processing device are presented.

Background art

In the processing industry, raw materials such as flat cardboard elements are delivered in large units. Large units of the board elements have to be ordered in stacks comprising a predefined number of board elements before the board elements can be further processed in a processing unit such as a printing machine for printing desired designs on cardboard elements.

In conventional printing machines, it is not possible to feed the cardboard elements from the delivered large units, since the height of the large units is too high for the feeding systems that feed the respective cardboard element to the printing machine. Currently, large units of carton elements have to be ordered in stacks comprising a desired number of cartons by provision of expensive robotic arms or by manually controlled cranes, for example. However, multiple cardboard elements in a stack cause a large stack weight that is not easy to handle by conventional cranes and conveyor systems.

US 2008/308997 A1 describes an arrangement according to the preamble of claims 1 and 15.

Summary of the invention

It may be an object of the present invention to provide a system for feeding flat stackable elements in a stack to a processing device.

The present object is solved by a feeding system and a method for feeding a stack of stackable flat elements, in particular cardboard elements, to a processing device and by a management system according to the independent claims.

According to a first aspect of the present invention, a feeding system for feeding the battery to the processing device is described. The feeding system comprises a transport device comprising the at least one second support platform. The second support platform is disposed adjacent the receiving surface so that the additional edge portion of the stack can be received. The feeding system further comprises a clamping element, wherein the clamping element is arranged to adjust a size of a gap between the clamping element itself and the second support platform so that the additional edge portion of the stack can be clamped between the fixing element and the support platform. The transport device is configured to be movable along a first direction between a receiving position and a transfer position in the processing device so that the stack is movable from the receiving position to the transfer position. The first direction is a direction that is parallel to one edge of the delivery chute and parallel to the additional edge portion of the stack that is located on the delivery chute.

Flat elements as described above generally describe elements that are stackable and that comprise a width and length greater than their thickness. Flat stackable elements can describe elements that can be stacked on top of each other without fixing means such as screw connections or clamp connections. Flat items as described above denote items that are stacked on top of each other, where the resulting stack can be statically robust such that the stack does not need clamping systems to prevent tilting of the stack. More specifically, the flat elements may comprise a thickness that is less than 10 cm and furthermore a length and width of more than 10 cm. Specifically, in a preferred embodiment, the flat elements are unfolded cardboard. However, also other flat elements, such as, for example, sheet elements or other plate-like elements, can be divided into portions by the above-described portioning system according to the present invention.

The flat stackable elements can be cardboard elements such as corrugated cardboard. The cardboard elements can be made of paper, cardboard, flexible materials such as sheets made of metal or plastic. Cardboard elements can be used to form wrappers and packages.

The processing device may be a device for processing, laminating, coating or printing the flat elements.

In the present description, a stack edge portion denotes a stack portion between an edge and a center stack portion within a plane along which the length and width of the stack are defined. The edge portion runs along an edge of the stack and may have an in-plane area of 1/3 to 1/10 times or less than the area of a central portion of the stack. The central portion of a stack is surrounded by edge portions running along respective edges of the stack, where the edge portions define areas between the central portion and respective edges of a stack.

The delivery chute has the receiving platform, on which the stack of flat elements can be arranged. On the receiving platform the additional edge portion and the central portion are arranged, wherein the additional edge extends from the receiving surface and rests on the first support platforms.

The support platform (denoted below in other exemplary embodiments as a second support platform) is configured to support at least the additional edge portion of the stack. The support platform defines a platform comprising a sufficiently large support surface, on which at least the further edge portion of the stack can be arranged.

The fixing element may be a fixing bar which extends along the further edge portion of the stack. Alternatively, the fixing element is a stamp which is formed to press a section of the additional edge portion of the stack against the second support platform.

Therefore, by means of the transport system described above, the additional edge portion of the stack is attached by the fixing element to the second support platform. The rest of the stack that is not held by the clamping element is arranged on the receiving surface of the delivery chute, for example. By moving the transport device along a desired direction of movement, e.g. the first direction, the stack of flat items slides away from the receiving surface to the desired location, e.g. the transfer position . Therefore, by simply clamping an additional edge portion of the stack, an easy and simple transport mechanism for the stack is achieved.

According to a further exemplary embodiment of the present invention, the transport device comprises a transport carriage to which the second support platform is coupled.

According to a further exemplary embodiment of the present invention, the transport carriage is coupled to a guide rail such that the transport carriage is steerable along the guide rail to the handover position. The transport carriage can be coupled to the guide rail, for example, by a sliding bearing or roller bearing. According to a further exemplary embodiment of the present invention, a carrier is disposed between the delivery chute and the handover position, wherein the carrier is further disposed such that a portion of the stack that is disposed on the receiving surface can be received by the carrier element. The carrier element is configured to carry the portion of the stack between the delivery chute and the transfer position.

According to a further exemplary embodiment of the invention, the carrier member is fixed to a floor, wherein the carrier member comprises a sliding surface extending between the delivery chute and the handover position. The sliding surface is formed so that the stack can slide on the sliding surface between the delivery chute and the transfer position.

The carrier element is, for example, a table or a support bar that extends along a desired direction, in particular along the first direction. The carrier element is at the same height or slightly lower than the receiving surface, so that the portion of the stack surrounding the edge that is held by the clamping element can slide from the receiving surface to the carrier element. Therefore, a smoother and more regular transport of the stack is provided.

According to a further exemplary embodiment, the transport system further comprises a carrier structure, wherein the carrier structure is fixed to the ground. The carrier structure is formed such that the carrier element is movable along the carrier structure between the delivery chute and the handover position. For example, the carrier element is coupled by a slide bearing or a roller bearing to the carrier structure.

According to a further exemplary embodiment of the present invention, the management system further comprises a handover device that is arranged in the handover position. The transfer device comprises a transfer platform, wherein the transfer platform is formed such that in the transfer position the stack can be fed to the processing device. The transfer device comprises an additional fixing element, wherein the additional fixing element is arranged to adjust a size of an additional space between the additional fixing element itself and the transfer platform so that the edge portion of the stack can be clamped between the additional fixing element and the transfer platform.

If the second support platform is directed to the transfer position, the edge portion of the stack is disposed on the transfer platform. The additional clamping element then holds the edge against the transfer platform. In a next step, the clamping element can release the additional edge portion of the stack and the transport device can again be directed to the receiving position, where a further new stack can be received. Then the additional clamping element can release the edge portion of the stack and the flat elements forming the stack can be processed in the processing device. According to a further exemplary embodiment of the present invention, the transfer device is movable such that a distance between the second support platform and the transfer platform is variable such that the transfer platform is movable away from the second support platform. support platform for pulling the additional edge portion of the stack from the second support platform if the additional fixing element fixes the edge portion to the transfer platform.

According to a further aspect of the present invention, a management system for managing a stack of flat stackable elements, in particular cardboard elements, is presented. The management system comprises the feeding system described above.

According to a further exemplary embodiment of the management system, the management system comprises a portioning system for portioning stackable flat items, in particular cardboard items, into a stack for further processing. The part distribution system comprises a stacking section on which flat elements are stackable and a delivery chute comprising a receiving surface for receiving the stack. The delivery chute is arranged adjacent to the stacking section such that the stack can be pushed from the stacking section onto the delivery chute. The system further comprises a feeding device comprising a lifting platform and a pushing platform, where the feeding device is movable along a linear rail to push the stack to the delivery chute. The feed device is further movable along a lifting direction having at least one component that is parallel to the direction of gravity. The feeding device is configured such that the lifting platform is partially movable below the flat elements defining the stack so that an edge portion of the stack is disposed on the lifting platform to be raised by the lifting platform. The feeding device is further configured such that the stack can be pushed by the pusher platform along the linear rail until the stack is placed on the delivery chute.

The first direction along which the transport device is movable differs from the lifting direction and from a linear rail. For example, the first direction and the linear track extend within a horizontal plane, where an angle of about 60° to 120° can be defined between the first direction and the linear track. Therefore, the stacks can be moved by the feeding device along the linear rail on the delivery chute. Next, the transport device moves the stack along the first linear rail away from the delivery chute to the transfer position. The handover position is spaced from the part distribution system and thus from the delivery chute along the first direction. The delivery chute may have an edge adjacent to the transport device, where the edge is formed parallel to the first direction. Also, if the stack is located on the delivery chute, the further edge of the stack is aligned and oriented approximately parallel to the first direction.

According to a further aspect of the present invention, a method of distributing in parts stackable flat elements, in particular cardboard elements, in a stack for further processing is described. According to the method, the flat elements are located in a stacking section and a delivery chute comprising a receiving surface for receiving the stack is arranged adjacent to the stacking section. A lifting platform of a feeding device partially moves under the flat elements defining the stack so that an edge portion of the stack is disposed on the lifting platform. The lifting platform moves along a lifting direction that has at least one component that is parallel to the direction of gravity. The stack is pushed by a feeder pusher platform along a linear rail until the stack is disposed on the delivery chute. The stacking section comprises, for example, an area, on which the flat elements are placed and thus stacked. For example, flat items arrive from the manufacturing side and are placed on a pallet (namely a Europallet). On said pallet, the flat elements are stacked and form a large tower that can have a height of 2 meters and more. Said large towers of flat elements cannot be fed to additional processing devices, since the feeding area of said processing devices may not handle said large towers of flat elements. As described below, such a large tower of flat elements can be portioned by the portioning system according to the present invention into a stack that can be used for further processing.

The receiving surface of the delivery chute is arranged and shaped to receive the stack that is spaced from a lower stack of flat items to be left within the stacking section. The receiving surface comprises a predetermined height and forms a plateau, which comprises a similar height from the ground or a slightly lower height than the bottom of the stack. The bottom of the stack is formed by the bottommost flat element of the stack. In particular, the height of the receiving surface is slightly lower than the bottom of the stack, if the stack is still arranged within the stacking section, but is slightly higher than the height of the uppermost flat element of the stack. bottom that rests inside the stacking section. Therefore, the stack can simply be pushed along a horizontal direction (namely the linear rail) from the stacking section to the receiving surface, given that the height of the receiving surface and the height of the part bottom of the stack are almost similar.

The stack rests after the division into parts of the lower stack, which rests in the stacking section, on the receiving surface and can be used for further processing, for example, to deliver the stack to a desired location in a storage unit. processing such as a printing machine. The feeding device is adapted to separate the stacks from the lower stack by lifting and pushing the stack from the stacking section to the delivery chute. Specifically, the feeding device comprises a lifting platform that is configured to lift the flat elements that define the stack. The lifting platform defines a platform comprising a sufficiently large support surface on which at least the edge portion of the stack can be arranged. Therefore, by raising the lifting platform, the edge portion of the stack is raised so that at least the edge portion and also a part of an adjacent central section of the stack are raised from the lower stack. An additional edge portion of the stack which is located on an opposite side of the stack compared to the raised edge portion is still disposed on the uppermost flat element of the lower stack.

This has the technical effect that the frictional contact between the lowermost flat element of the stack and the uppermost flat element of the lower stack is reduced, so that sliding of the stack relative to the lower stack is easier. . In particular, the lifting platform is generally formed and disposed within a horizontal plane, so that the weight of the stack can be transferred to the lifting platform.

Furthermore, the feeding device comprises the pusher platform which is configured to push the stack along a linear rail from the stacking section to the receiving surface. The pusher platform defines a platform that is large enough so that the stack can be pushed along the linear rail without damaging the flat elements of the stack. In particular, the push platform is generally formed within a vertical plane so that a push force can be exerted along a horizontal direction by moving the push platform along the linear rail. In particular, the pusher platform is configured such that the pusher platform can be guided against a side surface of the stack. In particular, the push platform is formed such that the push platform pushes, in particular, against the lowest flat element of the stack. However, the pusher platform may extend from the lowermost planar member of the stack to the uppermost planar member of the stack so as to provide a proper transfer of the pushing force to the stack.

The lifting platform and the pushing platform can move relative to each other. According to a further exemplary embodiment of the present invention, the lifting platform and the pushing platform may be integrally formed and thus may move together such that no relative movement between the lifting platform and the pushing platform is possible. push platform.

The linear rail defines a direction between the receiving surface and the stacking section. Along the linear rail, the stack is movable. Furthermore, also the feeding device is specifically movable along the linear rail.

The feed device may be coupled to a feed guide system comprising, for example, a support structure. Along the supporting structure, for example, a guide rail is provided which extends along the linear rail. The feeding device can be directed along the guide rail automatically or manually in a remote controlled manner.

Therefore, by the part distribution system according to the present invention, the feeding device is directed in the lifting position, where the lifting platform moves between a lowermost flat element of the stack and an uppermost flat element from the lower stack and thus raises the stack from the lower stack lower. Next, the feeding device raises the lifting platform along a lifting direction so that the edge portion and, for example, a further part of the central portion of the stack are raised and thus they are separated from the uppermost flat element of the lower stack. Next, the pusher platform of the feeding device pushes the stack from the lower stack in the stacking section above the receiving surface of the delivery chute.

Thus, a robust partitioning system is achieved for partitioning a stack comprising a desired number of flat elements so that, in a simple manner, a stack is commissioned for further processing.

According to an exemplary embodiment of the present invention, the parting system further comprises an additional pusher platform that is movable along the linear rail. The further pushing platform is configured to move against a side face of the stack so that the stack is pushed along the linear rail in the direction of the feeding device so that the edge portion of the stack can be disposed on the stack. lifting platform.

According to a further exemplary embodiment of the method, prior to the step of moving a lifting platform of a feed device partially below the flat elements defining the stack, an additional pushing platform is moved along the linear rail against a side face of the stack so that the stack is pushed along the linear rail in the direction of the feeding device so that the edge portion of the stack can be arranged on the lifting platform.

For example, the additional push platform moves against a side face of the additional edge that is located opposite the edge where the lift platform lifts the stack. The additional push platform pushes the stack away from the delivery chute so that the opposite edge of the additional edge extends from the lower stack along the linear rail. Therefore, it is easier to move the lifting platform under the edge portion since the edge portion extends from the bottom stack. In other words, it is not necessary to move the lifting platform between the lowermost flat member of the stack and the uppermost flat member of the lower stack. Therefore, the lifting platform can move under the edge portion of the stack in a smoother and more regular manner so that the risk of destroying a flat item is reduced.

The additional push platform defines a platform that is large enough so that the stack can be pushed along the linear rail without damaging the flat elements of the stack. In particular, the additional push platform is generally formed within a vertical plane so that an additional thrust force can be exerted along a horizontal direction away from the delivery ramp by moving the push platform along of the linear rail. In particular, the additional push platform is formed in such a way that the additional push platform is pushed, in particular, against the lowermost flat element of the stack. However, the additional pusher platform may extend from the lowermost planar member of the stack to the uppermost planar member of the stack so as to provide a proper transfer of the pushing force to the stack.

According to an exemplary embodiment of the present invention, the feeding device is formed such that an angle between the lifting platform and the pushing platform is between 90° and 130°. For example, the lifting platform and the pushing platform may form a feeder comprising an L-shaped cross-section or profile.

According to an exemplary embodiment of the present invention, a position of the delivery chute is adjustable along the vertical direction. Therefore, the height of the delivery chute from the bottom is adjustable. Therefore, also the height of the receiving surface is height-adjustable, so that the height and thus the number of flat elements in the stack are adjustable by adjusting the height of the receiving surface. The higher the receiving section, the smaller the height and the lower the amount of flat items in the stack that is adjustable. The lower the receiving section, the higher the height and the greater the number of flat elements in the stack that is adjustable.

According to an exemplary embodiment of the present invention, the receiving surface is formed such that the stack can be disposed thereon by the feeding device, wherein (at least a section of) the receiving surface is formed within a plane normally comprising a component parallel to the horizontal direction so that the stack is slidable along the receiving surface by gravity. In other words, the receiving surface or at least a part of the receiving surface is formed as a ramp having an incline so that the stack slides due to its gravity forces along the receiving surface at a desired final destination. Therefore, an additional pushing mechanism along the receiving surface may not be necessary.

According to a further exemplary embodiment, in order to improve the sliding of the stack along the receiving surface, a vibration system can be arranged for the receiving surface of the delivery ramp, so that the surface vibrate reception. Due to the vibration of the receiving surface, promotes sliding of the stack along the receiving surface.

According to a further exemplary embodiment of the present invention, the delivery chute comprises a slide rail disposed on the receiving surface. The stack can slide along the slide rail. The slide rail is formed so that the stack can be pushed onto the slide rail by the push platform. The slide rail is a projection on the receiving surface. The slide rail extends from one edge of the slide surface adjacent the stacking section along a direction to a section of the receiving surface that defines a desired final destination of the stack. By arranging the stack on the slide rail, the contact region of the stack with respect to the receiving surface is reduced so that also the friction between the stack and the receiving surface is reduced so that sliding of the stack throughout the receiving section is promoted.

According to a further exemplary embodiment of the present invention, the stacking section comprises a stacking platform on which the flat elements are stackable. The stacking platform can be raised along a vertical lifting direction.

Therefore, the height of the stacking platform from the bottom is adjustable. Therefore, also the height difference with respect to the receiving surface is adjustable, so that the height and consequently the number of flat items in the stack are adjustable by adjusting the height of the stacking platform. The smaller the height distance between the stacking platform and the receiving surface, the higher the height of the stack to be divided into parts and the higher the number of flat items in the stack. The higher the height distance between the stacking platform and the receiving surface, the lower the height of the stack to be divided into parts and the lower the number of flat items in the stack.

According to a further aspect of the present invention, a management system for managing a stack of flat stackable elements, in particular cardboard elements, is presented. The management system comprises the parts distribution system described above.

According to a further exemplary embodiment of the management system, the management system comprises a transfer system for transferring the stack to a processing device. The transfer system comprises a first comb structure comprising at least one first support platform on which at least the further edge portion of the stack can be supported, wherein the first comb structure is mounted to the delivery chute. The transfer system further comprises a second comb structure comprising at least one second support platform on which at least the additional edge portion of the stack can be supported, wherein the second comb structure is configured to provide the stack to the processing device. The first support platform and the second support platform are arranged along a first direction one after the other in an interleaved manner so that the additional edge portion can be supported on the first support platform and the second support platform. medium. The first comb structure and the second comb structure are movable along the lifting direction with respect to each other so that the edge portion of the stack can be selectively supported by the first support platform or by the second support platform.

The first and second support platforms are configured to support the flat elements that define the stack. Each of the first and second support platforms defines a platform comprising a sufficiently large support surface, on which at least the additional edge portion of the stack can be arranged.

The term "interleaved manner" denotes that the first support platform and the second support platform are arranged along the first (horizontal) direction one after the other, wherein the first support platform and the second support platform they comprise respective side edges which are disposed adjacent to each other along the first direction. The first direction describes, for example, a direction that is parallel to one edge of the delivery chute and thus parallel to the additional edge portion of the stack that is located on the delivery chute.

According to a further exemplary embodiment of the present invention, the first comb structure comprises a first mounting bar extending along the first direction, wherein the at least one first support platform is mounted to the first mounting bar (which may be part of the delivery chute) and extends from the mounting bar along a second direction, which is perpendicular to the first direction. The second comb structure comprises a second mounting bar extending along the first direction, the second mounting bar being spaced apart from the first mounting bar along the second direction. The at least one second support platform is mounted to the second mounting bar and extends from the mounting bar along a third direction, which is anti-parallel to the second direction.

The first support platform is mounted to the delivery ramp. Therefore, the edge of the stack located above the receiving surface may be supported by the first support platform. The second support platform may be mounted to a mounting structure such as a mounting bar. The mounting structure and the delivery chute may be spaced apart from each other wherein the first support platform extends from the delivery chute to the mounting structure and the second support platform extends from the mounting structure to the loading ramp. delivery. Therefore, the additional edge portion of the stack is disposed in the space between the mounting structure and the delivery chute. Within the space, the first support platform and the second support platform are arranged along the first direction, where, depending on the height of the delivery ramp for the mounting structure, the first or the second support platform bracket supports the additional edge portion.

The first support platform is movable (in particular, along a vertical direction) with respect to the second support platform in such a way that, if the edge of the stack is supported by the first support platform, the second support platform support can move against the additional edge portion and lifts the additional edge portion of the stack away from the first support platform. Therefore, the additional edge portion of the stack is disposed on and supported by the second support platform. Alternatively, the first support platform can be lowered (namely along the vertical direction), e.g. eg, by lowering the delivery chute, so that the edge of the stack is supported by the second support platform if the first support platform moves lower than the second support platform.

Therefore, by the present invention, the stack is supported by the first system, namely the delivery chute, and is transferred to a second system, e.g. g., the transfer system, in a robust and simple way. If the further edge portion of the stack is supported by the second support platform, the second comb structure can be moved together with the stack to further processing, for example. According to a further exemplary embodiment of the present invention, the first comb structure comprises at least two first support platforms on which the further edge portion of the stack may be supported. The first two support platforms are spaced apart along the first direction such that the second support platform is movable along the lifting direction through the space between the first two support platforms.

According to a further exemplary embodiment of the present invention, the second comb structure comprises at least two second support platforms on which the further edge portion of the stack may be supported. The two second support platforms are spaced apart along the first direction such that the first support platform is movable along the lifting direction through the space between the two second support platforms.

According to a further aspect of the present invention, a feeding system for feeding the battery to the processing device is described. The feeding system comprises a transport device comprising the at least one second support platform. The second support platform is disposed adjacent the receiving surface so that the additional edge portion of the stack can be received. The feeding system further comprises a clamping element, wherein the clamping element is arranged to adjust a size of a gap between the clamping element itself and the second support platform so that the additional edge portion of the stack can be clamped between the fixing element and the support platform. The transport device is configured to be movable between a receiving position and a transfer position in the processing device so that the stack is movable from the receiving position to the transfer position.

It should be noted that embodiments of the invention have been described with reference to different objects. In particular, some embodiments have been described with reference to apparatus claims while other embodiments have been described with reference to method claims. However, a person skilled in the art will appreciate from the above description and the following description that, unless otherwise noted, in addition to any combination of characteristics belonging to one type of object also any combination between features relating to different objects, in particular, between features of the apparatus-type claims and features of the method-type claims are considered described with the present application.

Brief description of the drawings

The above defined aspects and further aspects of the present invention are apparent from the exemplary embodiments to be described hereinafter and are explained with reference to the exemplary embodiments. The invention will be described in greater detail hereinafter with reference to exemplary embodiments, but to which the invention is not limited.

Figure 1 to Figure 6 show schematic views of a management system comprising a part distributing device, a transfer system and a feeding system according to exemplary embodiments of the present invention.

Figure 7 shows a perspective view of a transfer system according to an exemplary embodiment of the present invention,

Figure 8 shows a schematic view of a transfer system according to an exemplary embodiment of the present invention, and

Figure 9 shows a schematic view of a transfer system and a handover system according to an exemplary embodiment of the present invention.

Detailed description of exemplary embodiments

The illustrations in the drawings are schematic. It is noted that, in different figures, similar or identical elements are provided with the same reference signs.

Fig. 1 to Fig. 6 show a management system comprising a part distributing device, a transfer system and a feeding system according to exemplary embodiments of the present invention. In particular, the management system is shown in Figure 1 to Figure 6 in different operating states.

The parting system is adapted to part cardboard items in a stack 101 for further processing. The part distribution system comprises a stacking section 102 on which flat elements are stackable and a delivery chute 103 comprising a receiving surface 104 for receiving the stack 101. The delivery chute 103 is arranged adjacent to the loading section. stacking section 102 in such a way that the stack 101 can be pushed from the stacking section 102 to the delivery chute 103.

The system further comprises a feeding device 105 comprising a lifting platform 106 and a pushing platform 107, where the feeding device 105 is movable along a linear rail 108 to push the stack 101 to the delivery chute. 103. The feed device 105 is further movable along a lifting direction 110 having at least one component that is parallel to the direction of gravity. The feeding device 105 is configured so that the lifting platform 106 is partially movable under the flat elements that define the stack 101 so that a slide of the stack 101 is arranged on the lifting platform 106 to be raised by the platform. 106. The feeding device 105 is further configured so that the stack 101 can be pushed by the pusher platform 107 along the linear rail 108 until the stack 101 is arranged on the delivery chute 103.

The edge portion 111 of the stack 101 denotes a portion of the stack 101 that is in contact with the lifting platform 106. The edge portion 111 lies between an edge and a central portion 116 of the stack 101 within a plane along which the length and width of the stack 101 are defined. The additional edge portion 115 is a portion of the stack 101 that is defined between an additional edge and a central portion 116, which additional edge is an additional edge opposite to the edge along linear rail 108.

The stacking section 102 comprises, for example, an area on which the flat elements are placed and thus stacked. For example, flat items arrive from the manufacturing side and are placed on a pallet (ie a Europallet). On said pallet, the flat elements are stacked and form a large tower that can have a height of 2 meters and more.

The receiving surface 104 of the delivery chute 103 is arranged and shaped to receive the stack 101 which is spaced apart from a lower stack 119 of the flat items to be left within the stacking section 102. The receiving surface 104 comprises a predetermined height and forms a plateau, comprising a similar height from the ground or a height slightly lower than the bottom of the stack 101. The bottom of the stack 101 is formed by the lowest flat element of the stack 101. In particular, the height of the receiving surface 104 is slightly less than the bottom of the stack 101, if the stack 101 is still disposed within the stacking section 102, but is slightly higher than the height of the flat element above it. top of the bottom stack 119 resting inside the stacking section 102. Therefore, the stack 101 can simply be pushed along a horizontal direction of the stacking section 102 to the receiving surface 104, since the height of the receiving surface 104 and the height of the bottom of the stack 101 are almost similar.

The stack 101 rests after the division into parts of the lower stack 119, which rests in the stacking section 102, on the receiving surface 104 (see Figure 5 and Figure 6 should be seen) and can be used for further processing. eg to deliver the stack 101 to a desired location in a processing unit such as a printing machine.

The feeding device 105 is adapted to separate the stack 101 from the lower stack 119 by lifting and pushing the stack 101 from the stacking section 102 to the delivery chute 103. Specifically, the feeding device 105 comprises a lifting platform 106 that is configured to lift the flat elements that define the stack 101. The lifting platform 106 defines a platform that comprises a sufficiently large support surface on which at least the portion of edge 111 of the stack 101. Thus, by raising the lifting platform 106, the edge portion 111 of the stack 101 is raised so that at least the edge portion 111 and also a part of an adjacent center section 116 of the stack 101 are raised from the lower stack 119. An additional edge portion 115 of the stack 101 which is located on an opposite side of the stack 101 compared to the raised edge portion 111 is still disposed on the flat element uppermost of the lower stack 119.

This has the technical effect that the frictional contact between the lowermost flat element of the stack 101 and the uppermost flat element of the lower stack 119 is reduced, so that a sliding of the stack 101 with respect to the lower stack 119 is easier. In particular, the lifting platform 106 is generally formed and disposed within a horizontal plane, so that the weight of the stack 101 can be transferred to the lifting platform 106.

Furthermore, the feeding device 105 comprises the pusher platform 107 which is configured to push the stack 101 along a linear rail 108 from the stacking section 102 to the receiving surface 104. The pusher platform 107 defines a platform which is large enough so that the stack 101 can be pushed along the linear rail 108 without damaging the flat elements of the stack 101. In particular, the push platform 107 is generally formed within a vertical plane so that a pushing force can be exerted along a horizontal direction by moving the pushing platform 107 along the linear rail 108. In particular, the pushing platform 107 is configured such that the pushing platform 107 can be guided against a side surface of the stack 101. In particular, the pusher platform 107 is formed so that the pusher platform 107 is pushed, in particular, against the lowermost flat member of the stack 101. However, the pusher platform 107 may extend from the lowermost flat member of the stack 101 to the uppermost flat member of the stack 101 so as to provide a proper transfer of the thrust force to the stack 101.

The lifting platform 106 and the pushing platform 107 are integrally formed and therefore can be moved together so that no relative movement is possible between the lifting platform 106 and the pushing platform 107.

Along the linear rail 108, the stack 101 is movable. Furthermore, also the feeding device 105 is specifically movable along the linear rail 108.

Feed device 105 may be coupled to feed guide system 120 comprising, for example, a support structure. Along the support structure, the feed device 105 can be driven automatically or manually in a remote controlled manner.

Also, a position of the delivery chute 103 is adjustable along the vertical direction. Therefore, the height of the delivery chute 103 from the bottom is adjustable. Therefore, also the height of the receiving surface 104 is adjustable in its height, so that the height and consequently the number of flat elements in the stack 101 are adjustable by adjusting the height of the receiving surface 104. The higher the receiving surface 104, the smaller the height and the lower the amount of flat elements of the stack 101 which is adjustable. The lower the receiving surface 104, the higher the height and the higher the number of flat elements of the stack 101 which is adjustable.

The receiving surface 104 is formed such that the stack 101 can be disposed thereon by the feed device 105, wherein (at least a section of) the receiving surface 104 is formed within a plane normally comprising a parallel component to the horizontal direction so that the stack 101 is slidable along the receiving surface 104 by gravity. In other words, the receiving surface 104 or at least a part of the receiving surface 104 is formed as a ramp having an incline so that the stack 101 slides due to its gravity forces along the surface of reception 104 to a desired final destination. Therefore, an additional push mechanism along the receiving surface 104 may not be necessary.

In order to improve the sliding of the stack 101 along the receiving surface 104, a vibration system may be arranged for the receiving surface 104 of the delivery chute 103, so that the receiving surface 104 vibrates. Due to the vibration of the receiving surface 104, a sliding of the stack 101 along the receiving surface 104 is supported.

As shown, by way of example, in Figure 2, the delivery chute 103 comprises a slide rail 201 disposed on the receiving surface 104. The stack 101 can slide along the slide rail 201. The slide rail 201 is shaped so that stack 101 can be pushed onto slide rail 201 by push platform 107. Slide rail 201 is a projection on receiving surface 104. Slide rail 201 extends from one edge of the slide surface adjacent to stacking section 102 along linear rail 108 to a section of receiving surface 104 defining a desired final destination of stack 101. By arranging stack 101 on slide rail 201, the contact region of stack 101 with respect to the receiving surface 104 is reduced so that also the friction between the stack 101 and the receiving surface 104 is reduced so that the sliding of the stack 101 along the receiving section is promoted.

The stacking section 102 comprises a stacking platform 114 on which the flat elements can be stacked. The stacking platform 114 can be raised along a vertical direction (namely, the lifting direction 110).

Therefore, the height of the stacking platform 114 from the bottom is adjustable. Therefore, also the height difference with respect to the receiving surface 104 is adjustable, so that the height and, consequently, the number of flat items in the stack 101 are adjustable by adjusting the height of the loading platform. stacking 114. The smaller the height distance between the stacking platform 114 and the receiving surface 104, the higher the height of the stack 101 to be divided into parts and the higher the number of flat items in the stack. 101. The higher the height distance between the stacking platform 114 and the receiving surface 104, the lower the height of the stack 101 to be divided into parts, and the lower the number of flat items in the stack 101. .

Before the step of moving a lifting platform 106 of the feeding device 105 partially below the flat elements that define the stack 101, an additional pushing platform 112 moves along the linear rail 108 against a side face 113 of the stack. stack 101 so that the stack 101 is pushed along the linear rail 108 in the direction of the feed device 105 so that the edge portion 111 of the stack 101 projects from the lower stack 119 along the linear rail 108 and can be disposed on the lifting platform 106. Therefore, it is easier to move the lifting platform 106 below the edge portion 111 since the edge portion 111 extends from the bottom stack 119. In particular, the additional push platform 112 is formed in such a way that the additional push platform 107 is pushed, in particular, against the lowermost flat member of the stack 101. However, the additional push platform 903 it may extend from the lowermost flat stack member 101 to the uppermost flat stack member 101 so as to provide a proper transfer of the thrust force to the stack 101.

Furthermore, as shown in Fig. 1 to Fig. 6, a transfer system for transferring the stack 101 to a processing device is illustrated. The transfer system comprises a first comb structure 121 comprising at least one first support platform 123 on which at least the additional edge portion 115 of the stack 101 can be supported, wherein the first comb structure is mounted to the delivery ramp 103.

The transfer system further comprises a second comb structure 122 comprising at least one second support platform 124 on which at least the additional edge portion 115 of the stack 101 can be supported, wherein the second comb structure 122 is configured to provide the battery 101 to the processing device. The first support platform 123 and the second support platform 124 are sandwiched with each other so that the additional edge portion 115 can be supported on both the first support platform 123 and the second support platform 124. The first comb structure 121 and the second comb structure 122 are movable with respect to each other so that the additional edge portion 115 of the stack 101 can be supported by at least one of the first support platform 123 and the second support platform 124.

The first and second support platforms 123, 124 are configured to support the flat elements that define the stack 101. The first and second support platforms 123, 124 each define a platform comprising a sufficiently large support surface, on which at least the additional edge portion 115 of the stack 101 can be disposed.

The first support platform 123 and the second support platform 124 are interleaved with each other, which means that the first support platform 123 and the second support platform 124 are arranged along a first direction 109 one after the other. , wherein the first support platform 123 and the second support platform 124 comprise respective side edges that lie adjacent to each other along the first direction 109. The first direction 109 describes, for example, a direction that is parallel to an edge of the delivery chute 103 and therefore parallel to the additional edge portion 115 of the stack 101 which is located above the delivery chute 103.

The first support platform 123 is mounted to the delivery chute 103. Therefore, the edge of the stack 101 located on the receiving surface 104' can be supported by the first support platform 123. The second support platform 124 is mounts to a mounting structure, such as a mounting bar. The mounting structure and the delivery ramp 103 may be spaced apart from each other, wherein the first support platform 123 extends from the delivery ramp 103 to the mounting structure and the second support platform 124 extends from the delivery structure. assembly to the delivery ramp 103. Therefore Thus, the additional edge portion 115 of the stack 101 is disposed in the space 705 (see FIG. 7) between the mounting structure and the delivery chute 103 (see FIG. 6). Within the space 705, the first support platform 123 and the second support platform 124 are arranged along the first direction 109, where, depending on the height of the delivery ramp 103 for the mounting structure, the first or the second support platform supports the additional edge portion 115.

The first support platform 123 is movable (in particular, along a vertical direction) with respect to the second support platform 124 in such a way that, if the edge of the stack 101 is supported by the first support platform 123, the second support platform 124 can move against the additional edge portion 115 and lifts the additional edge portion 115 of the stack 101 away from the first support platform 123. Therefore, the additional edge portion 115 of the stack 101 is disposed on and supported by the second support platform 124. Alternatively, the first support platform 123 can be lowered (namely, along the vertical direction), eg. by lowering delivery chute 103, so that the edge of stack 101 is supported by second support platform 124 if first support platform 123 moves lower than second support platform 124.

Therefore, the stack 101 is supported by the first system, namely the delivery chute 103, and is transferred to a second system, eg. g., the transfer system, in a robust and simple way. If the additional edge portion 115 of the stack 101 is supported by the second support platform 124, the second comb structure can be moved together with the stack 101 to further processing, for example.

The transfer system is described in more detail in Figure 7.

Also, as shown in Fig. 1 to Fig. 6, a feeding system for feeding the stack 101 to the processing device is illustrated. The feeding system comprises a transport device 125 comprising the at least one second support platform 124 as described above. The second support platform 124 is disposed adjacent to the receiving surface 104' so that the additional edge portion 115 of the stack 101 can be received (see Figure 6).

The feed system further comprises a fixing element 117, wherein the fixing element 117 is arranged to adjust a size of a gap 705 between the fixing element 117 itself and the second support platform 124 so that the edge portion additional 115 of the stack 101 can be clamped between the fixing element 117 and the support platform (see Figure 6). The transport device 125 is configured to be movable between a receiving position and a transfer position in the processing device so that the stack 101 is movable from the receiving position to the transfer position.

Therefore, by means of the transport system described above, the additional edge portion 115 of the stack 101 is held by the fixing element 117 to the second support platform 124. The rest of the stack 101 that is not held by the fixing element 117 is disposed on the receiving surface 104' of the delivery chute 103, for example. By moving the transport device 125 along a desired direction of movement, for example, the first direction 109, the stack 101 of flat items slides away from the receiving surface 104' to the desired location, such as , the transfer position.

The transport device 125 comprises a transport carriage to which the second support platform 124 is coupled. The transport carriage is coupled to a guide rail 118 such that the transport carriage is steerable along the guide rail 118 at the transfer position.

Next, the method for distributing into parts and transferring the stack 101 from the stacking section 102 to the transfer system 125 is summarized below:

In an initial position, the flat elements are arranged in the stacking section 102. Next, the additional pushing platform 112 pushes against the additional edge portion 115 and pushes the stack 101 along the linear rail 108 until the portion of edge 111 projects from the bottom stack 119 (see Figure 2).

Next, the feeding device 105 moves to a position, where the lifting platform 106 is disposed below the edge portion 111 and the pushing platform 107 contacts the stack face 101 (FIG. 3).

Next, the feeding device 105 moves to a position, where the lifting platform 106 lifts the edge portion 111 and partially the center section 116 of the stack 101 from the lower stack 119. Further, the pushing platform 107 pushes against the side face of the edge portion 111 and thus pushes the stack 101 along the linear rail 108 in the direction of the receiving surface 104 (see Figure 1).

Device 105 then pushes stack 101 along linear rail 108 until stack 101 disposed on the receiving surface 104 (see Figure 4).

Next, the stack 101 slides along the receiving surface 104 of the delivery chute 103 until the additional edge portion 115 of the stack 101 is disposed on the first support platform 123 of the first comb structure. 121. The receiving surface 104' can be tilted so that the stack 101 slides due to its own weight from the feed device 105 along the receiving surface 104' until the stack 101 disengages from the feed device 105 (see Figure 5). The first support platforms 123 and the second support platforms 124 may comprise vertically extending platforms that function as a stop so that the movement of the stack 101 along the linear rail 108 is limited.

Next, a portion of the receiving surface 104', on which the stack 101 is disposed, is movable along the lifting direction 110. Therefore, the receiving surface 104' lowers until the first platforms support platforms 123 are lower than the second support platforms 124 of the second comb structure 122. In the present position, the additional edge portion 115 is fully supported by the second support platforms 124 and completely disengaged from the first ones. support platforms 123. In the present position of the stack 101, the fixing element 107 holds the additional edge portion 115 against the second support platforms 124, so that the stack 101 is movable, for example, along the first address 109 (it is necessary to see Figure 6).

In the present position shown in Figure 6, the stack 101 is divided into parts such that the stack 101 comprises the desired number of flat elements and thus a desired height. Furthermore, the stack 101 is transferred from the part distribution system to the supply system by the transfer system. Then, as described below, the feed system may move the clamped stack 101 along the first direction 109 of the receiving surface 104' to the transfer position.

Therefore, by the part distribution system according to the present invention, the feeding device 105 is directed in the lifting position, where the lifting platform 106 moves between a lowermost flat element of the stack 101 and an element uppermost plane of the lower stack 119 and thus the white stack from the lower stack. Next, the feeding device 105 lifts the lifting platform 106 along a lifting direction 110 so that the edge portion 111 and, for example, a further part of the central portion 116 of the stack are raised and , therefore, is separated from the uppermost flat element of the lower stack. Next, the pusher platform 107 of the feeding device 105 pushes the stack of the lower stack in the stacking section 102 above the receiving surface 104 of the delivery chute 103.

Figure 7 shows a more detailed view of the transfer system for transferring the stack 101 to the processing device and of the feed system for feeding the stack to the processing device.

The first comb structure 121 comprises a first mounting bar 701 extending along the first direction 109, where the first support platforms 123 are mounted to the first mounting bar 701 (which may be part of the ramp). delivery 103) and extend from the first mounting bar 701 along a second direction 703, which is perpendicular to the first direction 109. The second comb structure 122 comprises a second mounting bar 702 extending along along the first direction 109, where the second mounting bar 702 is spaced apart from the first mounting bar 701 along the second direction 703. The second support platforms 124 are mounted to the second mounting bar 702 and they extend from the second mounting bar 702 along a third direction 704, which is antiparallel to the second direction 703.

Two first support platforms 123 are spaced apart from each other (namely, along the first direction 109) such that a respective one of the second support platforms 124 is movable through the space between the first two support platforms. 123. Therefore, along the first direction 109, the first support platforms 123 and the second support platforms 124 are arranged in an alternate manner.

The first comb structure 121 is movably supported, e.g. by the delivery chute 103, such that the first comb structure 121 is movable along the elevation direction 110 relative to the second comb structure 122 so that the first support platforms 123 pass the second support platforms along the lifting direction 110.

The fixing element 117 is a holding bar 706 that extends along the additional edge portion 115 of the stack 101.

The clamping element 117 may be, for example, hinged to the second mounting bar 702. Thus, the clamping element 170 may pivot between a clamping position, where the clamping bar 706 clamps the additional edge portion 115 of the stack 101 against the second support platforms 124, and a release position, where the holding bar 706 does not hold the stack 101 to the second support platforms 124.

The second mounting bar 702 is movably mountable to a guide rail 118 so that the second mounting bar 702 is movable together with the clamped stack 101 along the first direction 109. Figure 8 shows a view schematic view of the feeding device, in which the clamping bar 706 is shown in the clamping position and thus clamps the additional edge portion 115 of the stack 101 against the second support platforms 124. The second mounting bar 702 and the stack 101 as shown in Figure 8 move along the first direction 109 compared to the position shown in Figure 7. Therefore, the delivery chute 103 is already located in the upper part. back of the stack 101 and is therefore illustrated in dotted lines. Therefore, the central portion 116 and the edge portion 111 of the stack 101 have already left the receiving surface 104.

A carrier element 801 is disposed between the delivery chute 103 and the handover position, wherein the carrier element 801 is further disposed such that a portion of the stack 101 which is disposed on the receiving surface 104' can be received by the carrier element 801. Carrier element 801 is configured to carry the portion of the stack 101 between the delivery chute 103 and the handover position. The carrier element 801 is fixed to a floor, where the carrier element 801 comprises a sliding surface that extends between the delivery chute 103 and the transfer position. The sliding surface is formed so that the stack 101 can slide on the sliding surface between the delivery chute 103 and the transfer position. The carrier element 801 is, for example, a table or a support bar that extends along a desired direction, in particular along the first direction 109. The carrier element 801 is at the same height or a little lower with respect to the receiving surface 104 (shown in dotted lines), so that the portion of the stack 101 that surrounds the edge that is held by the fastener 117 can slide off the receiving surface 104 to the carrier element 801. Thus, a smoother and more regular transport of the stack 101 is provided.

Figure 9 shows the feeding device and the transfer position. A handover device 900 is disposed in the handover position. The transfer device 900 comprises a transfer platform 901, where the transfer platform 901 is formed such that in the transfer position the stack 101 can be fed to the processing device. The transfer device 900 comprises an additional fixing element 902, wherein the additional fixing element 902 is arranged to adjust a size of an additional space between the additional fixing element 902 itself and the transfer platform 901 so that the portion of edge 111 of stack 101 can be clamped between additional fixing element 902 and transfer platform 901.

If the second support platforms 124 are directed to the transfer position, the edge portion 111 of the stack 101 is placed on the transfer platform 901. Next, the additional fixing element 902 holds the edge portion 111 against the transfer platform 901. In a next step, the clamping element 117 can release the additional edge portion 115 of the stack 101 and the transport device 125 can again be directed to the receiving position, where a new stack 101 can be received. additional. Next, the additional clamping element 902 can release the edge portion 111 of the stack 101 and the flat elements forming the stack 101 can be processed in the processing device.

Furthermore, the transfer device 900 is movable, eg. along the linear rail, so that a distance between the second support platform 124 and the transfer platform 901 is variable such that the transfer platform 901 is movable away from the second support platform 124 to pull of the additional edge portion 115 of the stack 101 of the second support platforms 124 if the additional fixing element 902 fastens the edge portion 111 to the transfer platform 901.

Therefore, the additional edge portion 115 of the stack 101 resides on a feed platform 904, while the edge portion 111 is still held by the additional clamping element 902. In a next step, the transfer platform 901 moves along the linear rail 108 again in a direction to the second support platforms 124 until the additional edge portion 115 and thus the stack 101 are arranged in a desired final position on the feed platform 904. In a final step, the additional fixing element 902 releases the edge portion 111 and the transfer platform 901 is again moved away from the second support platforms 124 so that the additional edge portion 115 slides down from the transfer platform 901. Finally, the stack 101 comprising a desired number of flat elements is placed on the feed platform 904 from which the flat elements can be removed. can be fed to the processing device.

It should be noted that the term "comprising(s)" does not exclude other elements or steps and "a" or "an" does not exclude a plurality. Elements described in connection with different embodiments may also be combined. It should also be noted that the reference signs in the claims must not be construed as limiting the scope of the claims.

Claims (15)

1. Feeding system for feeding a stack (101) of stackable flat elements, in particular cardboard elements, to a processing device, the feeding system comprising a delivery ramp (103) comprising a receiving surface (104) on which an edge portion (111) and a central portion (116) of the stack (101) can be arranged, a transport device (125) comprising a support platform on which at least one further edge portion (115) of the stack (101) can be supported, wherein the support platform is disposed adjacent to the receiving surface (104) so that the additional edge portion (115) of the stack (101) can be received, a fixing element (117), wherein the fixing element (117) is arranged to adjust a size of a gap (705) between the fixing element (117) itself and the support platform, so that the additional edge portion (115) of the stack (101) can be clamped between the fixing element (117) and the support platform, characterized in that the transport device (125) is configured to be movable along a first direction (109) between a receiving position, in which the stack (101) can be received by the delivery chute (103), and a handover position in the processing device such that the stack (101) is movable from the receiving position to the handover position, wherein the first direction (109) is a direction that is parallel to one edge of the delivery ramp (103) and parallel to the additional edge portion (115) of the stack (101) that is located on the delivery ramp (103). 2. Feeding system according to claim 1, wherein the fixing element (117) is a holding bar (706) that extends along the additional edge portion (115) of the stack (101). 3. Feeding system according to claim 1, wherein the fixing element (117) is a stamp that is formed to press a section of the additional edge portion (115) of the stack (101) against the support platform. 4. Feed system according to one of claims 1 to 3, wherein the transport device (125) comprises a transport carriage to which the second support platform (124) is coupled. 5. Feeding system according to claim 4, further comprising a guide rail (118), wherein the transport carriage is coupled to the guide rail (118) such that the transport carriage can be driven along the guide rail (118) to the transfer position. 6. Feeding system according to any of claims 1 to 5, further comprising a carrier element (801) that is arranged between the delivery ramp (103) and the transfer position, wherein the carrier element (801) is further arranged such that a portion of the stack (101) that is disposed on the receiving surface (104) can be received by the carrier element (801), wherein the carrier element (801) is configured to carry the portion of the stack (101) between the delivery chute (103) and the transfer position. 7. Feeding system according to claim 6, wherein the carrier element (801) is fixed to a floor, wherein the carrier element (801) comprises a sliding surface that extends between the delivery ramp (103) and the transfer position, wherein the sliding surface is formed such that the stack (101) can slide on the sliding surface between the delivery chute (103) and the transfer position. 8. Feeding system according to claim 6, further comprising a carrier structure, wherein the supporting structure is fixed to a floor, wherein the carrier structure is formed such that the carrier element (801) is movable along the carrier structure between the delivery chute (103) and the handover position. 9. Feeding system according to one of claims 1 to 8, further comprising a transfer device that is arranged in the transfer position, wherein the transfer device comprises a transfer platform, wherein the transfer platform is formed such that in the transfer position the stack (101) can be fed to the processing device, wherein the transfer device comprises an additional fixing element (902), wherein the additional fixing element (902) is arranged to adjust a size of an additional space between the additional fixing element (902) itself and the transfer platform, so that an edge portion (111) of the stack ( 101) can be clamped between the additional fixing element (902) and the transfer platform. 10. Feeding system according to claim 9, wherein the transfer device is movable such that a distance between the support platform and the transfer platform is variable such that the transfer platform is movable away from the support platform to pull the additional edge portion (115 ) of the stack (101) of the support platform if the additional fixing element (902) fastens the additional edge portion (115) to the transfer platform. 11. Management system for managing a stack (101) of stackable flat elements, in particular cardboard elements, where the management system comprises a feeding system according to one of claims 1 to 10. 12. Management system according to claim 11, further comprising a parting system for dividing the flat stackable elements in the stack (101) into parts for further processing, the distribution system in parts comprising a stacking section (102) on which flat items are stackable, wherein the delivery chute (103) is arranged adjacent to the stacking section (102) such that the stack (101) is pushable from the loading section stacking (102) to the delivery chute (103), and a feeding device (105) comprising a lifting platform (106) and a pushing platform (107), wherein the feeding device (105) is movable along a linear rail (108) to push the stack (101) to the delivery chute (103), and wherein the feed device (105) is further movable along an elevation direction (110) having at least one component that is parallel to the direction of gravity, wherein the feeding device (105) is configured so that the lifting platform (106) is partially movable under the flat elements that define the stack (101) so that an edge portion (111) of the stack ( 101) is arranged on the lifting platform (106) to be lifted by the lifting platform (106), and wherein the feeding device (105) is further configured such that the stack (101) can be pushed by the pusher platform (107) along the linear rail (108) until the stack (101) is disposed on the delivery ramp (103). 13. Management system according to claim 11 or 12, further comprising a transfer system for transferring the stack (101) to a processing device, the transfer system comprising a first comb structure (121) comprising at least one first support platform (123) on which at least one additional edge portion (115) of the stack 101 can be supported, wherein the first comb structure (121) mounts to the delivery chute (103), and a second comb structure (122) comprising at least one second support platform (124) on which at least the additional edge portion (115) of the stack (101) can be supported, wherein the second comb structure (122) is configured to provide the stack (101) to the processing device, wherein the first support platform (123) and the second support platform (124) are arranged along the first direction (109) one after another in an interleaved manner so that the additional edge portion (115) can be supported on the first support platform (123) and the second support platform (124), wherein the first comb structure (121) and the second comb structure (122) are movable along the lifting direction (110) relative to each other such that the additional edge portion (115) of the stack (101) can be selectively supported by the first support platform (123) or the second support platform (124) . 14. Management system according to claim 13, wherein the first comb structure (121) comprises at least two first support platforms (123) on which the additional edge portion (115) of the stack (101) can be supported, wherein the two first support platforms (123) are spaced apart along the first direction (109) such that the second support platform (124) is movable along the lifting direction (110) through of the space between the first two support platforms (123). 15. Method for feeding a stack (101) of stackable flat elements, in particular, cardboard elements, to a processing device, the feeding system comprising arranging an edge portion (111) and a central portion (116) of the stack (101) on a receiving surface (104) of a delivery chute (103), arranging at least one additional edge portion (115) of the stack (101) on a support platform of a transport device (125), wherein the support platform is disposed adjacent to the receiving surface (104) so that the additional edge portion (115) of the stack (101) can be received in a receiving position, clamping the additional edge portion (115) of the stack (101) between a fixing element (117) and the support platform, wherein the fixing element (117) is arranged to adjust a size of a space (705) between the fixing element (117) itself and the support platform, the method characterized in that moves the stack (101) along a first direction (109) from the receiving position to a transfer position by the transport device (125) that is configured to be movable between the receiving position and the transfer position in the processing device, wherein the first direction (109) is a direction that is parallel to one edge of the delivery ramp (103) and parallel to the additional edge portion (115) of the stack (101) that can be located on the delivery ramp (103).